Atomizing device and electronic cigarette having same

ABSTRACT

An atomizing device of an electronic cigarette includes an atomizing sleeve, an air pipe located in the atomizing sleeve, a heating assembly arranged on the air pipe, a heating assembly fixing base fixing and supporting the heating assembly, a metallic sleeve supporting the heating assembly fixing base, and a sealing cover. The sealing cover and the heating assembly fixing base are respectively located at two opposite ends of the air pipe. The atomizing sleeve, the air pipe, the sealing cover, the heating assembly fixing base, and the metallic sleeve cooperatively define a sealed tobacco solution reserving space without a reservoir cotton received therein. An electronic cigarette using the atomizing device is also provided.

BACKGROUND

1. Technical Field

The present invention relates to electronic cigarettes, and particularlyto an atomizing device and an electronic cigarette having the atomizingdevice.

2. Description of Related Art

Atomizing devices are key components of electronic cigarettes. A typicalatomizing device includes a reservoir cotton, a tobacco solutionreserved in the reservoir cotton, and a heating assembly for heating andatomizing the tobacco solution. Then the atomized tobacco solution canbe sucked by a user of the electronic cigarette.

However, as the reservoir cotton is immersed by the tobacco solution,the reservoir cotton may be smelly after a long time immersion, therebythe taste of the tobacco solution may be changed accordingly.

What is needed, therefore, is an atomizing device and an electroniccigarette which can overcome the above shortcomings.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the present atomizing device and electronic cigarettecan be better understood with reference to the following drawings. Thecomponents in the drawings are not necessarily drawn to scale, theemphasis instead being placed upon clearly illustrating the principlesof the present atomizing device and electronic cigarette. Moreover, inthe drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a cross sectional view of an atomizing device of an electroniccigarette in accordance with a first embodiment.

FIG. 2 is similar to FIG. 1, but taken along a perpendicular linerelative to FIG. 1.

FIG. 3 is an exploded view of the atomizing device of FIG. 1.

FIG. 4 is a cross sectional view of an air pipe and a sealing covershown in FIG. 3.

FIG. 5 is a schematic isometric view of the sealing cover of FIG. 4.

FIG. 6 is a schematic isometric view of a heating assembly fixing baseshown in FIG. 3.

FIG. 7 is a schematic isometric view of a tobacco solution obstructingring shown in FIG. 3.

FIG. 8 is a cross sectional view of an atomizing device of an electroniccigarette in accordance with a second embodiment.

FIG. 9 is a schematic view of an electronic cigarette in accordance witha third embodiment.

DETAILED DESCRIPTION

Embodiments of the present electronic cigarette will now be described indetail below and with references to the drawings.

Referring to FIGS. 1 to 3, an atomizing device 100 of an electroniccigarette in accordance with a first embodiment is provided. Theatomizing device 100 includes an atomizing sleeve 1, an air pipe 5, aheating assembly 4 fixed on the air pipe 5, a metallic ring 7 and anozzle 3 located respectively at two ends of the air pipe 5, a heatingassembly fixing base 8, and a sealing cover 2. The heating assemblyfixing base 8 is fixed on the metallic ring 7. The sealing cover 2, airpipe 5, metallic ring 7, and heating assembly fixing base 8 are receivedin the atomizing sleeve 1. The sealing cover 2, air pipe 5, heatingassembly fixing base 8, and metallic ring 7 cooperatively define asealed tobacco solution reserving space 11 without a reservoir cottonreceived therein.

In addition, an electrode ring 9 is fixed in the metallic ring 7, and aninsulating ring 10 is located between the metallic ring 7 and theelectrode ring 9. The metallic ring 7 and the electrode ring 9 arerespectively connected to a positive end and a negative end of a powersource.

The heating assembly 4 includes a glass fiber core 41 and a heating coil42 winding around the glass fiber core 41. Two ends of the heating coil42 are connected to the electrode ring 9 and the metallic ring 7,respectively. The glass fiber core 41 can absorb the tobacco solutionreserved in the tobacco solution reserving space 11, and the heatingcoil 42 can heat the tobacco solution absorbed by the glass fiber core41, thereby atomizing the tobacco solution. Therefore, the atomizingdevice 100 work properly without a conventional reservoir cotton, andthe taste of the tobacco solution cannot be changed.

Referring to FIGS. 4 and 5, the sealing cover 2 has an air through hole22 and a connecting groove 23. The connecting groove 23 surrounds thethrough hole 22. The air pipe 5 is inserted in the connecting groove 23and is in communication with the through hole 22. The sealing cover 2 isarranged adjacent to the nozzle 3. The sealing cover 2 is made of aflexible material, and has a tobacco solution filling hole 21 configuredfor filling the tobacco solution into the tobacco solution reservingspace 11 between the atomizing sleeve 1 and the air pipe 5. The tobaccosolution filling hole 21 is a blind hole. A needle can be used to fillthe tobacco solution into the tobacco solution reserving space 11 duringfilling the tobacco solution. As the tobacco solution reserving space 11is sealed, a negative pressure is formed in the tobacco solutionreserving space 11 after the tobacco solution is used, thereby thetobacco solution would not leak out through the metallic ring 7 and theelectrode ring 9 even when the atomizing device 100 stands upwards.

Referring to FIG. 6, the heating assembly fixing base 8 includes acentral through hole 84, a first sidewall through hole 82, and a secondsidewall through hole 83. Axes of the central through hole 84, firstsidewall through hole 82, and second sidewall through hole 83 areparallel with each other. Two ends of the heating coil 42 respectivelyextend through the first sidewall through hole 82 and the secondsidewall through hole 83, and respectively bend at an outer wall of theheating assembly fixing base 8 and an inner wall of the central throughhole 84. The electrode ring 9 is positioned inside the central throughhole 84.

Referring to FIG. 2 and FIG. 6, the heating assembly fixing base 8further has an inserting hole 81 in communication with the centralthrough hole 84. The air pipe 5 is inserted in the inserting hole 81.

Referring to FIG. 1 again, a tobacco solution obstructing ring 6 isarranged on the air pipe 5 inside the atomizing sleeve 1. The tobaccosolution obstructing ring 6 is arranged above the heating assembly 4.Referring to FIG. 7, the tobacco solution obstructing ring 6 includes afirst ring 63 and a second ring 61 in communication with the first ring63. An inner diameter of the second ring 61 is greater than that of thefirst ring 63. In the present embodiment, the second ring 61 is incontact with the heating assembly 4. An outer wall of the second ring 61has a cutout surface 62 facing toward the atomizing sleeve 1, and thecutout surface 62 is configured for controlling a rate of flow of thetobacco solution.

In the present embodiment, each of the tobacco solution obstructing ring6, the sealing cover 2, the nozzle 3, and the heating assembly fixingbase 8 is made of a flexible material. The flexible material can besilicon or plastic material.

Referring to FIG. 8, an atomizing device 200 in accordance with a secondembodiment is provided. The atomizing device 200 is essentially similarto the atomizing device 100. In the present embodiment, the atomizingsleeve 1 has a tobacco solution obstructing structure 16 integrallyformed thereon to , so that the tobacco solution obstructing ring 6 isnot needed. The tobacco solution obstructing structure 16 has a throughhole surrounding the air pipe 5, and an inner wall of the through holehas a cutout surface 17 facing toward the air pipe 5.

Referring to FIG. 9, an electronic cigarette 400 in accordance with athird embodiment is provided. The electronic cigarette 400 includes anatomizing device 100 (200) and a battery assembly 300 connected to theatomizing device 100(200). The battery assembly 300 has a chargeablebattery.

It is understood that the above-described embodiments are intended toillustrate rather than limit the disclosure. Variations may be made tothe embodiments and methods without departing from the spirit of thedisclosure. Accordingly, it is appropriate that the appended claims beconstrued broadly and in a manner consistent with the scope of thedisclosure.

What is claimed is:
 1. An atomizing device of an electronic cigarette,comprising: an atomizing sleeve; an air pipe located inside theatomizing sleeve; a heating assembly arranged on the air pipe; a heatingassembly fixing base fixing and supporting the heating assembly; ametallic sleeve supporting the heating assembly fixing base; and asealing cover, wherein the sealing cover and the heating assembly fixingbase are respectively located at two opposite ends of the air pipe, andthe atomizing sleeve, the air pipe, the sealing cover, the heatingassembly fixing base, and the metallic sleeve cooperatively define asealed tobacco solution reserving space without a reservoir cottonreceived therein.
 2. The atomizing device of claim 1, further comprisinga tobacco solution obstructing ring arranged on the air pipe and abovethe heating assembly.
 3. The atomizing device of claim 2, wherein thetobacco solution obstructing ring comprises a first ring and a secondring in communication with the first ring, a diameter of the second ringis greater than that of the first ring, and the second ring is incontact with the heating assembly.
 4. The atomizing device of claim 3,wherein an outer wall of the second ring has a cutout surface facingtoward the atomizing sleeve.
 5. The atomizing device of claim 2, whereinthe tobacco solution obstructing ring is made of a flexible material. 6.The atomizing device of claim 1, wherein the atomizing sleeve has atobacco solution obstructing structure integrally formed thereon, thetobacco solution obstructing structure has a through hole surroundingthe air pipe, and an end of the tobacco solution obstructing structureis in contact with the heating assembly.
 7. The atomizing device ofclaim 6, wherein an inner wall of the tobacco solution obstructingstructure has a cutout surface facing toward the air pipe.
 8. Theatomizing device of claim 1, wherein the sealing cover is made of aflexible material, the sealing cover has a tobacco solution fillinghole, and the tobacco solution filling hole is a blind hole.
 9. Theatomizing device of claim 1, wherein the heating assembly comprises aglass fiber core and a heating coil winding around the glass fiber core;the heating assembly fixing base comprises a central through hole, afirst sidewall through hole and a second sidewall through hole, two endsof the heating coil respectively extend through the first sidewallthrough hole and the second sidewall through hole, and respectively bendat an outer wall of the heating assembly fixing base and an inner wallof the central through hole.
 10. The atomizing device of claim 1,further comprising a nozzle arranged on the sealing cover and incommunication with the air pipe.
 11. An electronic cigarette comprisingan atomizing device of claim 1, and a battery assembly connected to theatomizing device.